Nebulizer.



' Patented Mar. 4, I902. H. GOLTERMANN. ussuuzsn.

. (Application filed June 25, 1901.)

(No Ilodol.)

e y E Ff d . WITNESSES i VEN T 0/? d -%am%mm 4 j? a A TTORNEYS UNITEDSTATES PATENT FFICE.

HERMANN GOLTERMANN, OF NEV YORK, N. Y.

NEBULIZER.

SPECIFICATION formingpart of Letters latent No. 694,630, dated, March 4,1902.

Application filed June 25, T90].

T0 ctZZ whom it may concern;

Be it known that LHERMANN GOLTERMANN, a citizen of the UnitedStates,residing in New York, borough of Manhattan, in the State of NewYork, have invented certain newand useful Improvements in Nebulizers, ofwhich the following is a specification.

This invention relates to an improved neb ulizer or instrument in whicha finer vapor is produced than in the well-known atomizers' by throwingthe spray produced by an atomizing device against a wall, so that itbreaks up into a vapor, and in which that part of the spray whichliquefies on striking the wall is conducted back into the liquid vessel.Nebulizers have heretofore been supplied on the market, but the spray isproduced at the-inside of the liquid vessel by striking against thesides of the same and is then conducted to the place of use. Myinvention is designed to produce the spray outside of the liquid vesseland conduct the same through a spherical or other head and a suitablenozzle to the place of use. For this purpose the invention consists of anebulizer comprising a liquid vessel, a spray-head, and an atomizingdevice connected with the liquidvessel and at" ranged to spray theliquid against the sprayhead; and the invention consists, further, ofcertain details of construction and combina tions of parts, which willbe fully described hereinafter and finally pointed out in the claim.

In the accompanying drawings,Figure 1 represents a side elevation of myimproved nebulizer. Fig. 2 is a vertical longitudinal sec tion of thesame, and Fig. 3 is a horizontal section on line 3 3, Fig. 2.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a vessel, of glass or othersuitable material,in which the'liquid to be sprayed is placed. Theliquid-containing vessel A is provided with a neck B, having an exteriorscrew-thread, on which is screwed the interiorly-threaded lower' end ofa cap B, a washer 0. making the connection tight. The cap is providedwith: a bore 12, which connects at its lower end with a suction-tube Oand at its upper end with a spray-nozzle c, the end of which is bentover bores 17 in the cap B.

so that its end is above the end of the air- Serial- No. 65,922. (Nomodel.)

7 supply tube d, which is connected by the bore cl and tube 01 with theordinary rubber bulb D or other air-forein g device. The end of theair-supply tube 61 is located in proximity to the nozzle 0, so that bythe air supplied under .pressure a suction is created on the liquid inthe liquid vessel and the liquid raised through the suction-tube, bore19, and nozzle and then atomized. On the upper end of the cap B isscrewed a hollow head E, preferably spherical in'shape and provided witha discharge-nozzle e,which may be made integral therewith. The spray isthrown from the atomizing device against-theinner surface of the head Eand is broken up by the same into an'extremely fine vapor, which escapesthrough the discharge-nozzle e to the part to be treated. The nozzle eis arranged at a slight inclination toward the head, so as to returninto the same all liquid condensed therein when thenebulizer is setdown. The liquid which condenses upon the inner surface of the hollowhead E or is returned by the nozzle is conducted back into the liquidvessel by means of return- The air-supply tube is not connected with thevessel A, but with the spray-head, so that air under pressure is notsupplied to the interior of the liquid Vessel, the liquid in the samebeing under-atmospheric pressure only.

My improved nebulizer has the following advantages: First, it is workedonly by suction, no air, being supplied under pressure to the interiorof the liquid vessel, but only supplied to the atomizing device at theatom izing -point; second, the surplus liquid is returned from thespray-head E through the return-openings 1) into the liquid vessel, so

that none of the liquid is wasted; third, the ,vaporis formed by thecontact of the atomized spray with the inner circumference of the hollowhead and then conducted off through 'the discharge-nozzle; fourth, thedischargenozzle being made in one piece with the hollow spray-head E andthe latter tightly secured screwed on said neck, and provided with Ihead E screwed on said cap, the upperend of bores b extending throughthe same and communicating with the interior of the "essel, and with aliquid-supply bore 1) also extending therethrough, and an air-supplybore (,l', an air-supply tube d connected with said airsupply bore, andprojecting from the upper end of said cap, a suction-tube 0 connectedwith the lower end of the bore 1), a nozzle 0 connected with the upperend of said bore and having its upper end bent over in proximity to saidair-supply tube d, a spherical said nozzle and air-supply tube beinglocated in the lower part of said head, and a discharge-nozzleprojecting from one side of said spherical head, substantially as setforth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

HERMANN GOLTERMANN. Witnesses:

PAUL GOEPEL, JOSEPH H. NILES.

